Tax returns released by the White House show Obama's adjusted gross income was $5,505,409 in 2009 - mostly from best-selling book sales.
On that, he owed $1,792,414 in federal taxes, or a third of his income, but overpaid by $8,287. The Obamas applied the refund to next year's bill.
The Obamas' total gross income was $5,623,690, before adjustments.
The President offset his tab somewhat by being very generous, giving $329,100 to 40 different charities.
In addition, the Obamas donated his entire $1.4 million Nobel Peace Prize income to charity and paid $163,303 in Illinois state income taxes.
Because Obama donated the entire Nobel award to charity, it didn't count as income and he wasn't able to claim a deduction for those gifts.
Joe and Jill Biden aren't nearly so well-off. The vice president and his wife's income was $333,182, on which they paid $71,147 to Uncle Sam. They gave away $4,820 to charity and paid $13,897 in state income taxes.
The returns show that the Obamas made about as much in charitable contributions as the Bidens earned in 2009.
Among the 10 charities who received contributions from Obama's Nobel cash are the Posse Foundation, a New York-based group that got $125,000 to provide scholarships for students with extraordinary academic and leadership potential.
The Obamas' income included $374,460 in wages, $13,473 in interest, $12,018 in dividends and $4,230 in other income. The overwhelming majority of their income - nearly $5.2 million - was from book royalties.
Like millions of Americans, the Obamas reduced their tax bite by contributing - in their case $49,000 - to a retirement plan.